Ask A Spaceman Archives - Page 19 of 50

Sep 5th: How Are We to Understand Quantum Spin?

What does it mean for an electron to spin? Why do we have such a hard time measuring it?

What’s the balancing act happening inside stars? Why is iron the fusion limit? How long does it take for a star to blow?

How does the universe generate giant magnetic fields? How do we find them anyway?

Preview of the new Space Radio show!

What’s the deal with time crystals? Do they break physics as we know it?

Do black holes exist, or are they merely theoretical constructs? What’s the evidence?

Does everyone have the same clock? Can we skip forward into the future?

What’s the matter with dark matter? check out the answer here.

I’ve heard there’s an “axis of evil” in space – what’s up with that? Is there anything special about our position within the universe?

How do we measure the expansion history of the universe?